/*
 * File    : GeneralStats.java
 * Created : 15 d�c. 2003}
 * By      : Olivier
 *
 * Azureus - a Java Bittorrent client
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details ( see the LICENSE file ).
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package org.gudy.azureus2.core3.stats.transfer;

/**
 * @author Olivier
 * 
 */
public interface GeneralStats {

    /**
     * @return the number of downloaded bytes
     */
    public long getDownloadedBytes();

    /**
     * @return the number of uploaded bytes
     */
    public long getUploadedBytes();

    /**
     * @return the total lifetime 'up time' in seconds
     */
    public long getTotalUpTime();

    /**
     * Method variants that can return values relative to the last mark
     * 
     * @param since_mark
     * @return
     */
    public long getDownloadedBytes(boolean since_mark);

    public long getUploadedBytes(boolean since_mark);

    public long getTotalUpTime(boolean since_mark);

    public int getAverageDownloadSpeed(boolean since_mark);

    public int getAverageUploadSpeed(boolean since_mark);

    public long getMarkTime();

    /**
     * Sets a mark against the overall up/down/uptime so that the methods that report relative to the mark return values relative to it
     */

    public void setMark();

    public void clearMark();

    /**
     * @return this session uptime in seconds
     */
    public long getSessionUpTime();

    /**
     * @return the average download speed in bytes per second
     */
    public int getAverageDownloadSpeed();

    /**
     * @return the average upload speed in bytes per second
     */
    public int getAverageUploadSpeed();
}
